Registry assignments, software defaults and local listeners are different things. A port number alone does not identify or secure a service.
Logiciels utilisant ce port (2 logiciels)
Community software entries: links are references, not individual verification.
Conseils d’utilisation
- Avant d’utiliser le port 88, vérifiez qu’il n’est pas occupé par d’autres services
- En cas de conflit de ports, envisagez d’utiliser d’autres ports ou d’arrêter le service qui occupe le port
Questions fréquentes
What is port 88 used for?
Port 88 sits in the System category. This page lists the registered purpose and the software commonly associated with it; to see what is actually listening on a specific machine, check the process with ss/netstat.
Is port 88 TCP or UDP?
The registered protocol on this page is TCP / UDP. The same number behaves independently on each protocol: TCP may be listening while UDP is idle, so check them separately.
How do I check if port 88 is in use?
On Linux: sudo ss -tlnp 'sport = :88' for an exact port match. On macOS: sudo lsof -nP -iTCP:88 -sTCP:LISTEN. On Windows PowerShell: Get-NetTCPConnection -LocalPort 88 -State Listen. A listener counts as confirmed only when you can see the bind address and process name; without root/admin you will not see other users' processes.
Is port 88 secure? Should I open it in my firewall?
A port number has no inherent security — it depends on whether the listening service is correctly configured and whether it needs exposure at all. Keep loopback/internal-only services firewalled; where public access is required, pair it with source restrictions, VPN or authentication.
En bref
- Port
- 88
- Protocole
- TCP/UDP
- Catégories
- Système
- État d’utilisation
- 2 logiciels utilisant ce port
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